He found 15 ways, which generalized to methods like CORDIC, etc.
A couple years ago I was wondering if SDF shape representation could use something like a taxi cab distance metric to move floating point operations to integer, although I haven't spent too much time investigating it.
"How Many Ways Can You Draw a Circle?", the first *Jim Blinn's Corner* article:
https://ieeexplore.ieee.org/document/4057251
He found 15 ways, which generalized to methods like CORDIC, etc.
A couple years ago I was wondering if SDF shape representation could use something like a taxi cab distance metric to move floating point operations to integer, although I haven't spent too much time investigating it.